Gearing.



Rm 0 9 l 4- l R A M .D E T N E T A P ZG TN mm D E PG APPLICATION FILED OUT. 14, 1904.

[NYE/(T08 ATTORNEYS mmzssss Patented March 14, 1905.

PATENT OFFICE.

PAUL DIETZ, OF PHILADELPHIA, PENNSYLVANIA.

GEARING.

SPECIFICATION forming part of Letters Patent N0. 785,064, dated March 14 1905.

Original application filed April 9, 1904, Serial No. 202,307. Divided and this application filed October 1 4., 1904. Serial No. 228,406.

T0 in whom, it may concern:

Be it known that I, PAUL DIETZ, a subject of the Emperor of Germany, residing at Wissinoming, Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented a new and useful Improvement in Gearing, of which the following is a full, clear, and exact description, reference being bad to the accompanying drawings, which form a part of this specification.

The object of my invention is to provide means giving a step-by-step motion in either of two opposite directions to driven mechanism from a continuously-rotating shaft.

The invention finds special utility and application to a shedding-motion for looms in which the knives for actuating the draw-bars and the pattern chain 01' wheel for lifting the draw-bars are each operated from a common driving-shaft, but in which it is necessary that the knives shall be continuously operated while the pattern-chain shall be intermittently operated and in which it is also desirable that the pattern device shall have the capacity of traveling backwardly as well as forwardly.

My invention relates to the means for at taining this object, and for a fuller understanding of the specific function which the invention is designed to effect, as well as for a better appreciation of the mode of operation of the invention, I have illustrated both the continuously-rotating driving-shaft and the pattern device to be intermittently driven.

In the drawings, Figure 1 is a side elevation of the invention, together with a portion of the loom-frame, driving-shafts, and pattern-shaft. Fig. 2 is a section on the line 2 2 of Fig. 1; Fig. 3, a section on the line 3 3 of Fig. l with the gears in a different position, and Fig. 4 is a section on the line I 4 of Fig. 3.

A designates the portion of the frame of the loom for holding the shedding motion.

E is the shaft having the eccentrics or other means (not shown) for imparting a continuous reciprocatory movement to the knives. (Not shown.)

E is a bevel-gear on the end of shaft E.

H is a bevel-gear in driving engagement with gear E and on the upper end of the upright shaft H, which is the common shaft for driving the knives and the pattern device.

H is a gear on the lower end of the upright shaft H, said gear being in driven engagement with gear J on the main loom-shaft J.

On the driving-shaft H is a bevel-gear H This bevel-gear may be formed, as shown, integral with the gear H. L is a bevel-gear engaging gear H The bevel-gear L is on one end of the shaft L, which extends along the machine and terminates adjacent to the pattern-shaft P. L is a bevel-gear sleeved on this end of the shaft L. The gear L is constructed in the following manner: One end thereof has a conical annular projection Z embracing the shaft projecting beyond the end of the shoulder Z Projecting radially from said projection is a tooth Z. dial inset in one end of said sleeve, into which said tooth extends.

M is 'a bevel-gear on the pattern-shaft P. The gear consists of the sleeve m the polygonal disk m, and the teeth m on the outer side and adjacent to the periphery of the disk. The teeth'correspond in number to the flattened peripheral sections of the polygonal disk and are located, respectively, centrally thereof, and their peripheries are flattened, so as to be flush, respectively, therewith. The space between the teeth is opposite the angles formed at the junction of the flat peripheral sections. The outer side of each tooth has a concavity m. The tooth Z of the gear L is adapted to engage any of the teeth m of gear M.

The pattern-shaft P carries the sprocketwheels P and P, which drive the sprocket or pattern chainP.

The normal operation of the mechanism just described is as follows: Assume the main loom-shaft J to be moving in either direction, thus rotating the shafts H and E and reciprocating the knives, as before described. The gear H meshing with the gear L rotates the shaft L and the gear L. At each rotation of the gear Lthe tooth Z engages one of the teeth at and turns the gear M a fraction of a revolution corresponding to the number of teeth on. This turns the pattern-shaft P. When the gears L and M are in engagement, as just Z is a ra-.

described, the tooth L extends between two adjacent teeth m m of the gear M, and the angular edge formed at the junction of the two flat peripheral sections of disk m, corresponding to said tooth on m, projects into the inset Z (See Fig. 4.) When the tooth Zpasses out of engagement with gear M, the gears are in the position shown in Figs. 1 and 2, in which one of the flat sections of the periphery of disk m is opposite the flat surface of the shoulder Z thus preventing thegear M from turning a distance of more than one tooth and holding said gear stationary until the gear L has made a complete revolution. The concave surface Z of the tooth Z corresponding to said flat section alines with the conical surface of the projection Z, permitting V the latter to turn without being obstructed by said tooth. On the next revolution of the gear L it again engages the gear M and again turns it the distance of one tooth. When the shaft H is turned in the opposite direction, gear L is rotated in the opposite direction to that hereinbefore described, causing a stepby-step movement to be imparted to gear M and pattern-shaft P in a direction opposite to that hereinbefore described.

It will be understood that the sprocket-chain P operates directly or indirectly the draw-bars not shown) to place them in position to be actuated by the reciprocatory knives before referred to. I

This application is a division of application Serial No. 202,307. filed by me April 9, 1904, for a shedding-motion for looms.

Having now fully described my invention, whatl claim, and desire to protect' by Letters Patent, is

l. The combination, with a driving-shaft and a beveled gear thereon having a tooth and an inset into which said tooth extends, of a driven shaft and a beveled gear thereon having a polygonal periphery and a continuous series of teeth adapted to be successively engaged by the tooth of the first-named bevelgear in the latters rotation, substantially as described.

2. The combination, with a driving-shaft, of a mutilated gear-wheel, and a gear-wheel adapted to be engaged by the toothed section of the mutilated gear; the mutilated gear having a tooth and an inset into which said tooth extends and the other gear having a polygonal periphery, substantially as described.

3. The combination, with a driving-shaft and a beveled gear thereon having a conical projection, a tooth extending radially therefrom and an inset into which said tooth extends, of a driven shaft and a beveled gear thereon having a polygonal periphery and a continuous series of teeth each having a concavity adapted to said conical projection, whereby the rotation of the driving-gear imparts an intermittent rotation to the driven gear, substantially as described.

4. The combination, with a driving-shaft, of a mutilated gear-wheel and a gear-wheel adapted to be engaged by the toothed section of the mutilated gear; the latter having a projection, a beveled tooth extending radially therefrom and an inset into which said tooth extends; and the former having a polygonal periphery and a series of beveled teeth each having a concavity adapted to said conical projection, substantially as described.

5. The combination, with a driving-shaft and a beveled gear thereon having a conical projection, a tooth extending radially therefrom, and a flat annular shoulder surrounding said projection and broken away to form a radial inset into which said tooth extends, of a driven shaft and a beveled gear thereon having a polygonal periphery and a continuous series of teeth each having a concavity adapted to said conical projection and located respectively centrally of the flat sections of the periphery, whereby the rotation of the driving-gear imparts an intermittent rotation to the driven gear, substantially as described.

6. The combination, with a driving-shaft, of a mutilated gear-wheel and a gear-wheel adapted to be engaged by the toothed section of the mutilated gear; the latter having a conical projection, a flat shoulder surro unding said projection, said shoulder being broken away to form a radial inset, and a beveled tooth extendinginto said inset; and the former having a polygonal periphery and a series of beveled teeth located respectively centrally of the flat sections of said periphery and each having a concavity adapted to said conical projection, substantially as described.

7. The combination, with a driving-shaft and a beveled gear thereon having a conical projection, a tooth extending radially therefrom, and a flat annular shoulder surrounding said projection and broken away to form a radial inset into which saidtooth extends, of a driven shaft and a beveled gear thereon having a polygonal periphery adapted to said conical projection and located respectively centrally of the flat sections of the periphery, the periphery of each tooth being flattened, said flattened periphery being contiguous to and flush with one of the flattened sections of the periphery of the gear, whereby the rotation of the driving-gear imparts an intermittent rotation to the driven gear, substantially as described.

8. The combination, with a driving-shaft, of a mutilated gear-wheel and a gear-wheel adapted to be engaged by the toothed section of the mutilated gear; the latter having a conical projection, a flat annular shoulder surrounding said projection, said shoulder being broken away to form a radial inset, and a beveled tooth extending into said inset; and the former having a polygonal periphery, a series of beveled teeth located respectively centrally of the flat sections of said periphery and each having aconcavity adapted to said conical promy hand at Philadelphia on this 10th day of jectign, the periphery ofdeach teeth being flat; October, 1904. tene and the flattene perip iery of eac tooth being contiguous to and flush With one PAUL DIETZ' 5 of the flattened. sections of the periphery of Witnesses:

the gear, substantially as described. JOHN E. MARKHAM,

In testimony of which I have hereunto set ARTHUR L. MATTHEWS. 

